Gas-burner.



v, charge of the fuel into the furnace,thereby GAS-BURNER.

Laser.

I Specification of Letters Patent.

` Application mea March 12, 1910.

Serial No. 548,946.

To all 'whomf'it may concern:

.Be it known that I, HARRY` C. VERNEm/a citizen of the United States of America, and

vresident of Wheeling, county of Ohio, and State of West Virginia, have invented certain new and useful Improvements in Gas? Burners, of which the following is a specification. f

This invention relates to improvements in gas burners, and more especially to a burner for furnaces, steam boilers, and the like.`

The primary object of the invention is to produce a gas burner of the character mentioned which provides for a mostl` thorough commingling of gas and air prior to the disaccomplishing perfect combustion, with resultant greatly increased eiliciency and economy. Y,

A further object of the invention is to provide a burner into the air-mixing chamber or passage of which the gas is discharged through a' plurality of small openings -or slits, arranged circumferentially, atlsubstantially the full supply pressure and, consequently, with a force which will tend to facilitate the thorough miXing or commingling of air therewith'. Y

Further important` objects will hereinafter be made apparent in describing the invention in detail, and in so doing reference is herein had to the' accompanying drawings, forming a part of this specification, in

which.-

- Figure 1 is a side elevation of the inven- V Ation; Fig. 2 is an enlarged longitudinal section of the same; Fig. 3 is a cross section taken substantially on the line 3 3, Fig. 2;v Fig. 4 is a similar section on the line 1 -4, Fig. 2; and Fig. 5 is a detail perspective view of a broken portion of the discharge end of the adjustable sleeve.

Referring to said drawings, in which like .designating characters distinguish like parts throughout the several views-1 indicates a tubular body having at its front end a reduced, tubular extension 2, preferably integral therewith, an annular shoulder 3 being formed at the rear end of said extension. The rear end of said body 1 is interiorly threaded, and in threaded engagement therewith is an annular flange or rim 4c carried by an adjusting-sleeve 5 adjacent to the rear end of the latter. The front end of said sleeve 5 is provided with a plurality of narrow slots or slits 6 and fits snugly within the rear end of said extension 2. l

An annular gas-chamber 7 is formed between the body 1 and the body of the sleeve 5, the gas being admitted to said chamber at the full supply pressure through a supply- Patented Oct. 17, 1911.

pipe 8. The pressure of the gas in the'said Y chamber being that of the supply pressure, the gas is directed through the slits 6 with a force which serves to mix it more or less thoroughly fwith the air entering through the open rear end of the sleeve 5. The air thus entering through said sleeve in considerable volume to some extent confines the gas entering through said slits against or close to the walls of the extension 2; therefore, in order to provide for a more thorough admiXtur-e of air therewith prior to its d1scharge into the furnace, a tubular casing 9, preferably tapered in form, has its larger, or rear, end open and fitted over the front end of said extension, said casing being of larger diameter than said extension and adapted to ,admit air between it and said extension for commingling with the wall-hugging gas discharged from said-extension. Said casing is mounted upon said extension 2 by any suitable or appropriate means, as by a collar 10 embracing. said extension, said collar being mounted upon the inner ends of'radial inwardly-directed posts 11 iXed to said casing adjacent to its rear end.

The sleeve 5, as hereinbefore stated, has its front end fitted snugly within the'rear end of the extension 2. For regulating the volurne of gas admitted through the slits 6, the

sleeve may beadjusted forward and rearward to respectively decrease and increase the length of said slits open to the vpassage of the gas.

' Any suitable meansmay be employed for regulating the amount of air admitted through the sleeve, said means comprislng any adjustable closure for said sleeve. The means herein depicted, which constitutes one of the various means that might be employed, comprises a saucer-shaped closure 12 hinged to the body 1, as at 13, and adapted to be swung out-ward to a greater or less extent to regulate the volume of air admitted. A pin 111 pivotally connected to said closure is slidably mounted in a channel 15 provided in a lug 16 carried by said body .'1, and a set-screw 17 is adapted to be set 1n impinging relation to said pin for maintalning 'said closure in adjusted position. To further facilitate the mixing of the air and gas, a mixer formed of woven netting or gauze 18 of wire, or other appropriate material, and of tapered or truncated-cone shape, may be attached to the discharge end of the extension 2. The gas which is conned close to the walls of said extension, as hereinbefore mentioned, is thus caused to pass through said gauze and to commingle with the air admitted between said extension and the casing. This result may be advan tageously assisted by inclining -the interior walls of said extension outward, as shown at 19 in Fig. 2. Suitable means is provided whereby the.

sleeve 5 may be engaged or rasped for adjusting it with relation to t e body 1 and extension 2, the means depicted comprising one orv more rearwardly directed pins 20 carried by the rear end of said sleeve. Y

Having thus described my invention, what I claim as new, and desirefto secure by Let- Jadditional air to the gas ters'Patent, is-

1. A gas burner comprising a hollow body, a hollow extension in alinement with'said body, the interior diameter of said eXtension being less than that of said body, a sleeve having slits therein adjustably mounted within said body, the front end of said sleeve fitting within the rear end of said extension, an annular gas chamber being formed between said body and said sleeve, means for regulating the volume of air entering'through said sleeve, and a casing carried by said extension, and projected forward beyond the latter, an annular air-passage being formed between said extension and said casing.

2. gas .burner comprising a hollow in-V teriorly-threaded body, a gas regulating sleeve having a flange in threaded engagement with said body soas to be adjustable with relation to the latter, an extension of said 'body having a reduced bore, said sleeve having its front end slitted and fitted within said extension, a chamber into which gas is directed at supply pressure being formed be-p tween said body and said sleeve, means for controlling the supply of air through said sleeve, and a casing of larger diameter than said extension mounted upon and projecting forward beyond the latter to provide an annular passage therebetween for admitting e prior to its discharge from said casing.

3. A gas burner comprising a hollow interiorly-threaded body, a gas regulating sleeve having a flange in threaded engagement with said body, an ,extension of said body having a reduced'bore, said sleeve having its front end slitted and fitted within said extension, -a chamber into which gas is 4. A gas burner comprising a hollow body, l

a hollow extension in alinement with said body, the interior diameter of said extension beingless than that of said body, and increasing from its rear end forward, a sleeve having slits therein adjustably mounted within said body, the front end of said sleeve fitting within the rear end of said extension, an annular gas chamber being formed between saidbody and said sleeve, means for regulating the volume of air entering through said sleeve, a casing into which gas is discharged from said extension, said casing projecting beyond the mouth of said extension, and means for admitting air to said casing at its rear end.

5. A gas burner comprising a hollow interiorly-threaded body, an adjustable gas regulating sleeve having a flange in threaded engagement with said body, means carried by said body for regulating the draft through said sleeve, Van 'extension of said body having a reduced bore, which increases in diameter from its rear end forward, said sleeve having its front end slitted and tted within said extension, a chamber into which as is directed at supply pressure being 'ormed between said body and said sleeve, 4

.and a casing of larger diameter than said extension mounted upon the latter to provide an annular passage therebetween for admitting additional air to the gas prior to its discharge from said casing.

In testimony whereof I aliX my signature 

